CountOfBitsOne

import java.util.Scanner;

public class _07_CountOfBitsOne {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter number: ");
        int num = sc.nextInt();

        System.out.print("Number of one bits: " + Integer.bitCount(num));

        /* SECOND WAY

        int count = 0;
        int numLastDigit;

        while (num > 0) {
            numLastDigit = num & 1;
            num = num >> 1;

            if (numLastDigit == 1){
                count++;
            }
        }*/
    }

}